2018-04-16 20:18:51 -04:00
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# The MIT License (MIT)
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#
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# Copyright (c) 2018 Dan Halbert for Adafruit Industries
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#
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documentation files (the "Software"), to deal
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# in the Software without restriction, including without limitation the rights
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# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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# copies of the Software, and to permit persons to whom the Software is
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# furnished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be included in
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# all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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# THE SOFTWARE.
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import struct
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"""
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HID specific descriptors
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========================
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* Author(s): Dan Halbert
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"""
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2019-09-03 21:16:14 -04:00
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from collections import namedtuple
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2019-09-03 14:44:46 -04:00
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2019-09-03 21:16:14 -04:00
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from adafruit_usb_descriptor import hid
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2019-09-03 21:16:14 -04:00
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# Information about each kind of device
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# report_length does not include report ID in first byte, if present when sent.
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DeviceData = namedtuple('DeviceData', ('report_length', 'usage_page', 'usage'))
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HID_DEVICE_DATA = {
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"KEYBOARD" : DeviceData(report_length=8, usage_page=0x01, usage=0x06), # Generic Desktop, Keyboard
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"MOUSE" : DeviceData(report_length=4, usage_page=0x01, usage=0x02), # Generic Desktop, Mouse
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"CONSUMER" : DeviceData(report_length=2, usage_page=0x0C, usage=0x01), # Consumer, Consumer Control
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"SYS_CONTROL" : DeviceData(report_length=1, usage_page=0x01, usage=0x80), # Generic Desktop, Sys Control
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"GAMEPAD" : DeviceData(report_length=6, usage_page=0x01, usage=0x05), # Generic Desktop, Game Pad
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"DIGITIZER" : DeviceData(report_length=5, usage_page=0x0D, usage=0x02), # Digitizers, Pen
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"XAC_COMPATIBLE_GAMEPAD" : DeviceData(report_length=3, usage_page=0x01, usage=0x05), # Generic Desktop, Game Pad
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"RAW" : DeviceData(report_length=64, usage_page=0xFFAF, usage=0xAF), # Vendor 0xFFAF "Adafruit", 0xAF
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}
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def keyboard_hid_descriptor(report_id):
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data = HID_DEVICE_DATA["KEYBOARD"]
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return hid.ReportDescriptor(
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description="KEYBOARD",
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report_descriptor=bytes(
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# Regular keyboard
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(0x05, data.usage_page, # Usage Page (Generic Desktop)
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0x09, data.usage, # Usage (Keyboard)
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0xA1, 0x01, # Collection (Application)
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) +
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((0x85, report_id) if report_id != 0 else ()) +
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(0x05, 0x07, # Usage Page (Keyboard)
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0x19, 224, # Usage Minimum (224)
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0x29, 231, # Usage Maximum (231)
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0x15, 0x00, # Logical Minimum (0)
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0x25, 0x01, # Logical Maximum (1)
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0x75, 0x01, # Report Size (1)
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0x95, 0x08, # Report Count (8)
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0x81, 0x02, # Input (Data, Variable, Absolute)
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0x81, 0x01, # Input (Constant)
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0x19, 0x00, # Usage Minimum (0)
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0x29, 0xDD, # Usage Maximum (221)
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0x15, 0x00, # Logical Minimum (0)
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0x25, 0xDD, # Logical Maximum (221)
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0x75, 0x08, # Report Size (8)
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0x95, 0x06, # Report Count (6)
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0x81, 0x00, # Input (Data, Array)
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0x05, 0x08, # Usage Page (LED)
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0x19, 0x01, # Usage Minimum (1)
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0x29, 0x05, # Usage Maximum (5)
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0x15, 0x00, # Logical Minimum (0)
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0x25, 0x01, # Logical Maximum (1)
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0x75, 0x01, # Report Size (1)
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0x95, 0x05, # Report Count (5)
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0x91, 0x02, # Output (Data, Variable, Absolute)
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0x95, 0x03, # Report Count (3)
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0x91, 0x01, # Output (Constant)
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0xC0, # End Collection
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)))
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def mouse_hid_descriptor(report_id):
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data = HID_DEVICE_DATA["MOUSE"]
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return hid.ReportDescriptor(
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description="MOUSE",
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report_descriptor=bytes(
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# Regular mouse
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(0x05, data.usage_page, # Usage Page (Generic Desktop)
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0x09, data.usage, # Usage (Mouse)
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0xA1, 0x01, # Collection (Application)
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0x09, 0x01, # Usage (Pointer)
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0xA1, 0x00, # Collection (Physical)
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) +
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((0x85, report_id) if report_id != 0 else ()) +
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(0x05, 0x09, # Usage Page (Button)
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0x19, 0x01, # Usage Minimum (0x01)
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0x29, 0x05, # Usage Maximum (0x05)
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0x15, 0x00, # Logical Minimum (0)
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0x25, 0x01, # Logical Maximum (1)
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0x95, 0x05, # Report Count (5)
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0x75, 0x01, # Report Size (1)
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0x81, 0x02, # Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
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0x95, 0x01, # Report Count (1)
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0x75, 0x03, # Report Size (3)
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0x81, 0x01, # Input (Const,Array,Abs,No Wrap,Linear,Preferred State,No Null Position)
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0x05, 0x01, # Usage Page (Generic Desktop Ctrls)
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0x09, 0x30, # Usage (X)
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0x09, 0x31, # Usage (Y)
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0x15, 0x81, # Logical Minimum (-127)
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0x25, 0x7F, # Logical Maximum (127)
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0x75, 0x08, # Report Size (8)
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0x95, 0x02, # Report Count (2)
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0x81, 0x06, # Input (Data,Var,Rel,No Wrap,Linear,Preferred State,No Null Position)
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0x09, 0x38, # Usage (Wheel)
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0x15, 0x81, # Logical Minimum (-127)
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0x25, 0x7F, # Logical Maximum (127)
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0x75, 0x08, # Report Size (8)
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0x95, 0x01, # Report Count (1)
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0x81, 0x06, # Input (Data,Var,Rel,No Wrap,Linear,Preferred State,No Null Position)
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0xC0, # End Collection
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0xC0, # End Collection
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)))
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def consumer_hid_descriptor(report_id):
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data = HID_DEVICE_DATA["CONSUMER"]
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return hid.ReportDescriptor(
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description="CONSUMER",
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report_descriptor=bytes(
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# Consumer ("multimedia") keys
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(0x05, data.usage_page, # Usage Page (Consumer)
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0x09, data.usage, # Usage (Consumer Control)
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0xA1, 0x01, # Collection (Application)
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) +
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((0x85, report_id) if report_id != 0 else ()) +
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(0x75, 0x10, # Report Size (16)
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0x95, 0x01, # Report Count (1)
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0x15, 0x01, # Logical Minimum (1)
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0x26, 0x8C, 0x02, # Logical Maximum (652)
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0x19, 0x01, # Usage Minimum (Consumer Control)
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0x2A, 0x8C, 0x02, # Usage Maximum (AC Send)
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0x81, 0x00, # Input (Data,Array,Abs,No Wrap,Linear,Preferred State,No Null Position)
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0xC0, # End Collection
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)))
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def sys_control_hid_descriptor(report_id):
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data = HID_DEVICE_DATA["SYS_CONTROL"]
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return hid.ReportDescriptor(
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description="SYS_CONTROL",
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report_descriptor=bytes(
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# Power controls
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(0x05, data.usage_page, # Usage Page (Generic Desktop Ctrls)
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0x09, data.usage, # Usage (Sys Control)
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0xA1, 0x01, # Collection (Application)
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) +
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((0x85, report_id) if report_id != 0 else ()) +
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(0x75, 0x02, # Report Size (2)
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0x95, 0x01, # Report Count (1)
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0x15, 0x01, # Logical Minimum (1)
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0x25, 0x03, # Logical Maximum (3)
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0x09, 0x82, # Usage (Sys Sleep)
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0x09, 0x81, # Usage (Sys Power Down)
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0x09, 0x83, # Usage (Sys Wake Up)
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0x81, 0x60, # Input (Data,Array,Abs,No Wrap,Linear,No Preferred State,Null State)
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0x75, 0x06, # Report Size (6)
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0x81, 0x03, # Input (Const,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
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0xC0, # End Collection
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)))
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def gamepad_hid_descriptor(report_id):
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data = HID_DEVICE_DATA["GAMEPAD"]
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return hid.ReportDescriptor(
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description="GAMEPAD",
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report_descriptor=bytes(
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# Gamepad with 16 buttons and two joysticks
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(0x05, data.usage_page, # Usage Page (Generic Desktop Ctrls)
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0x09, data.usage, # Usage (Game Pad)
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0xA1, 0x01, # Collection (Application)
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) +
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((0x85, report_id) if report_id != 0 else ()) +
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(0x05, 0x09, # Usage Page (Button)
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0x19, 0x01, # Usage Minimum (Button 1)
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0x29, 0x10, # Usage Maximum (Button 16)
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0x15, 0x00, # Logical Minimum (0)
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0x25, 0x01, # Logical Maximum (1)
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0x75, 0x01, # Report Size (1)
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0x95, 0x10, # Report Count (16)
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0x81, 0x02, # Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
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0x05, 0x01, # Usage Page (Generic Desktop Ctrls)
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0x15, 0x81, # Logical Minimum (-127)
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0x25, 0x7F, # Logical Maximum (127)
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0x09, 0x30, # Usage (X)
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0x09, 0x31, # Usage (Y)
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0x09, 0x32, # Usage (Z)
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0x09, 0x35, # Usage (Rz)
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0x75, 0x08, # Report Size (8)
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0x95, 0x04, # Report Count (4)
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0x81, 0x02, # Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
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0xC0, # End Collection
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)))
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def digitizer_hid_descriptor(report_id):
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data = HID_DEVICE_DATA["DIGITIZER"]
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return hid.ReportDescriptor(
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description="DIGITIZER",
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report_descriptor=bytes(
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# Digitizer (used as an absolute pointer)
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(0x05, data.usage_page, # Usage Page (Digitizers)
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0x09, data.usage, # Usage (Pen)
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0xA1, 0x01, # Collection (Application)
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) +
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((0x85, report_id) if report_id != 0 else ()) +
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(0x09, 0x01, # Usage (Stylus)
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0xA1, 0x00, # Collection (Physical)
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0x09, 0x32, # Usage (In-Range)
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0x09, 0x42, # Usage (Tip Switch)
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0x09, 0x44, # Usage (Barrel Switch)
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0x09, 0x45, # Usage (Eraser Switch)
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0x15, 0x00, # Logical Minimum (0)
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0x25, 0x01, # Logical Maximum (1)
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0x75, 0x01, # Report Size (1)
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0x95, 0x04, # Report Count (4)
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0x81, 0x02, # Input (Data,Var,Abs)
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0x75, 0x04, # Report Size (4) -- Filler
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0x95, 0x01, # Report Count (1) -- Filler
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0x81, 0x01, # Input (Const,Array,Abs,No Wrap,Linear,Preferred State,No Null Position)
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0x05, 0x01, # Usage Page (Generic Desktop Ctrls)
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0x15, 0x00, # Logical Minimum (0)
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0x26, 0xff, 0x7f, # Logical Maximum (32767)
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0x09, 0x30, # Usage (X)
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0x09, 0x31, # Usage (Y)
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0x75, 0x10, # Report Size (16)
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0x95, 0x02, # Report Count (2)
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0x81, 0x02, # Input (Data,Var,Abs)
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0xC0, # End Collection
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0xC0, # End Collection
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)))
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2019-09-03 21:16:14 -04:00
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def xac_compatible_gamepad_hid_descriptor(report_id):
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data = HID_DEVICE_DATA["XAC_COMPATIBLE_GAMEPAD"]
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return hid.ReportDescriptor(
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description="XAC",
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report_descriptor=bytes(
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# This descriptor mimics the simple joystick from PDP that the XBox likes
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(0x05, data.usage_page, # Usage Page (Desktop),
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0x09, data.usage, # Usage (Gamepad),
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0xA1, 0x01, # Collection (Application),
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) +
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((0x85, report_id) if report_id != 0 else ()) +
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(0x15, 0x00, # Logical Minimum (0),
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0x25, 0x01, # Logical Maximum (1),
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0x35, 0x00, # Physical Minimum (0),
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0x45, 0x01, # Physical Maximum (1),
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0x75, 0x01, # Report Size (1),
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0x95, 0x08, # Report Count (8),
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0x05, 0x09, # Usage Page (Button),
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0x19, 0x01, # Usage Minimum (01h),
|
|
|
|
|
0x29, 0x08, # Usage Maximum (08h),
|
|
|
|
|
0x81, 0x02, # Input (Variable),
|
|
|
|
|
0x05, 0x01, # Usage Page (Desktop),
|
|
|
|
|
0x26, 0xFF, 0x00, # Logical Maximum (255),
|
|
|
|
|
0x46, 0xFF, 0x00, # Physical Maximum (255),
|
|
|
|
|
0x09, 0x30, # Usage (X),
|
|
|
|
|
0x09, 0x31, # Usage (Y),
|
|
|
|
|
0x75, 0x08, # Report Size (8),
|
|
|
|
|
0x95, 0x02, # Report Count (2),
|
|
|
|
|
0x81, 0x02, # Input (Variable),
|
|
|
|
|
0xC0 # End Collection
|
|
|
|
|
)))
|
2019-09-03 14:44:46 -04:00
|
|
|
|
2019-09-03 21:16:14 -04:00
|
|
|
def raw_hid_descriptor(report_id):
|
|
|
|
|
if report_id != 0:
|
|
|
|
|
raise ValueError("raw hid must not have a report id")
|
|
|
|
|
data = HID_DEVICE_DATA["RAW"]
|
|
|
|
|
return hid.ReportDescriptor(
|
|
|
|
|
description="RAW",
|
|
|
|
|
report_descriptor=bytes(
|
|
|
|
|
# Provide vendor-defined
|
|
|
|
|
# This is a two-byte page value.
|
|
|
|
|
(0x06, data.usage_page & 0xff, (data.usage_page >> 8) & 0xff, # Usage Page (Vendor 0xFFAF "Adafruit"),
|
|
|
|
|
0x09, data.usage, # Usage (AF),
|
|
|
|
|
0xA1, 0x01, # Collection (Application),
|
|
|
|
|
0x75, 0x08, # Report Size (8),
|
|
|
|
|
0x15, 0x00, # Logical Minimum (0),
|
|
|
|
|
0x26, 0xFF, 0x00, # Logical Maximum (255),
|
|
|
|
|
0x95, 0x08, # Report Count (8),
|
|
|
|
|
0x09, 0x01, # Usage(xxx)
|
|
|
|
|
0x81, 0x02, # Input (Variable)
|
|
|
|
|
0x95, 0x08, # Report Count (8),
|
|
|
|
|
0x09, 0x02, # Usage(xxx)
|
|
|
|
|
0x91, 0x02, # Input (Variable)
|
|
|
|
|
0xC0 # End Collection
|
|
|
|
|
)))
|
2019-09-03 14:44:46 -04:00
|
|
|
|
2019-09-03 21:16:14 -04:00
|
|
|
# Function to call for each kind of HID descriptor.
|
|
|
|
|
REPORT_DESCRIPTOR_FUNCTIONS = {
|
|
|
|
|
"KEYBOARD" : keyboard_hid_descriptor,
|
|
|
|
|
"MOUSE" : mouse_hid_descriptor,
|
|
|
|
|
"CONSUMER" : consumer_hid_descriptor,
|
|
|
|
|
"SYS_CONTROL" : sys_control_hid_descriptor,
|
|
|
|
|
"GAMEPAD" : gamepad_hid_descriptor,
|
|
|
|
|
"DIGITIZER" : digitizer_hid_descriptor,
|
|
|
|
|
"XAC_COMPATIBLE_GAMEPAD" : xac_compatible_gamepad_hid_descriptor,
|
|
|
|
|
"RAW" : raw_hid_descriptor,
|
|
|
|
|
}
|
